2014 GMC Yukon Denali
The 2014 GMC Yukon Denali tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2014 GMC Yukon
Tire geometry â 275/55R20
The 275/55R20 fitted to the 2014 GMC Yukon has a section width of 275mm and an aspect ratio of 55%, mounted on a 20-inch rim. That gives a sidewall height of 151.3mm (5.95") and an overall outside diameter of 810.5mm (31.91"). At highway speed this tire completes roughly 393 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2014 GMC Yukon while keeping the speedometer accurate, target a 285/49R21 (plus-one). For a softer ride or winter setup, a 265/62R19 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 2014 GMC Yukon uses a 6x139.7 bolt pattern with a 78.1mm hub bore. Safe rim width range for the OEM tire is 8.0J â 9.0J, and offsets in the ET26 â ET36 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2014 GMC Yukon is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
Fitment Specifications
| Engine & Trim | Tire Size | Rim Size | Offset (ET) |
|---|---|---|---|
| Denali | 275/55R20 | 20" x 8.5 | ET31 |
Frequently Asked Questions
What tire size does the 2014 GMC Yukon Denali use?
The 2014 GMC Yukon Denali uses 275/55R20 tires as standard equipment.
What is the bolt pattern of the 2014 GMC Yukon Denali?
The 2014 GMC Yukon Denali has a 6x139.7 bolt pattern with a center bore of 78.1mm.
What is the wheel offset of the 2014 GMC Yukon Denali?
The 2014 GMC Yukon Denali has a wheel offset of ETET31.